'''Charles Clarence Williamson''' (January 26, 1877 - January 11, 1965) was the Director of the Columbia University
Libraries and Dean of the Columbia School of Library Service from 1926 to 1940. He studied economics at Case Western Reserve University|Western Reserve College
, the University of Wisconsin
, and Columbia University
before joining the New York Public Library
in 1911 as the head of a new Division of Economics.
Williamson held positions at Bryn Mawr College
, the New York Public Library
, the Carnegie Corporation of New York|Carnegie Foundation
, and the Rockefeller Foundation
In 1919, he initiated a study of the training for library service in the United States for the Carnegie Foundation. Known as the "Williamson Report," the project was completed in 1921 and published in as ''[https://archive.org/details/trainingforlibra011790mbp Training for Library Service].''